CVE-2026-81981: Adobe Acrobat Reader out-of-bounds write

CVE-2026-81981 · Severity: high · CVSS 7.8 · Published 2026-09-08

Adobe Acrobat Reader is vulnerable to an out-of-bounds write flaw that allows arbitrary code execution when a user opens a specially crafted PDF file. An attacker can exploit this to run malicious code with the same privileges as the user viewing the document, potentially compromising sensitive data or taking over the system.

Technologies: Adobe Acrobat, Adobe Acrobat Reader, Adobe Acrobat Dc, Adobe Acrobat Reader Dc, Apple macOS, Microsoft Windows. Vendors: Adobe, Apple, Microsoft.

Quick answers

Is CVE-2026-81981 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-81981 being exploited in the wild.
How severe is CVE-2026-81981?
High severity, with a CVSS score of 7.8, published 8 September 2026.
Which products and versions are affected?
Adobe Acrobat Reader <UNKNOWN>.
Is there a fix for CVE-2026-81981?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-81981 attacked?
It is attacked with local access.
Am I affected by CVE-2026-81981?
Check whether you run Adobe Acrobat, Adobe Acrobat Reader, Adobe Acrobat Dc or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an out-of-bounds write flaw in Adobe Acrobat Reader that enables arbitrary code execution in the context of the current user. Exploitation requires user interaction—specifically, the victim must open a malicious PDF file. The out-of-bounds write occurs during PDF parsing or processing, allowing an attacker to corrupt memory and redirect execution flow. No patch availability information is currently available from the advisory.

Affected products

  • Adobe Acrobat Reader <UNKNOWN>

Timeline

  • 2026-09-08: disclosed

References

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